ANTENNA DEVICE AND ELECTRONIC DEVICE USING SAME

摘要

An antenna device (8) is provided with a ground forming body (9), a feed element (11) and a passive element. The feed element (11) has a first feed capacitance section (14) in a potential loop of Nth resonance and a second feed capacitance section (15) in a potential loop of Mth resonance. The passive element has a first passive capacitance section (16) in the potential loop of the Nth resonance and a second passive capacitance section (17) in the potential loop of the Mth resonance. Thus, the small antenna device (8) applicable to a plurality of frequency bands is provided.